Mervyn Johns and Gordon Jackson star in a thrilling story set during the Battle of the Atlantic and based on true events. 900 miles out from Britain, a German pocket battleship attacks a convoy. The tanker San Demetrio, carrying 12,000 gallons of petroleum is hit and badly damaged. Now the crew must decided whether to abandon her – or try to fight their way back home through hundreds of miles of U-boat infested seas in their stricken ship… ‘Classic, unforgettable Ealing Studios war film guaranteed to bring a lump to your throat… totally inspiring, uplifting, exciting ****’ – TV Times Film & Video Guide